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1998-06-19  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/generic/bits/sem.h: Don't define union semun.

	* sysdeps/unix/sysv/linux/bits/sem.h: Fix typo.

	* sysdeps/unix/sysv/linux/bits/ipc.h: Remove ipc_kludge definition
	here.
	* sysdeps/unix/sysv/linux/msgrcv.c (msgrcv): Add ipc_kludge
	definition here.
This commit is contained in:
Ulrich Drepper 1998-06-19 11:09:14 +00:00
parent dfab448bd8
commit 977bfd77e6
6 changed files with 58 additions and 30 deletions
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11
ChangeLog
View File

@ -1,3 +1,14 @@
1998-06-19 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/generic/bits/sem.h: Don't define union semun.
* sysdeps/unix/sysv/linux/bits/sem.h: Fix typo.
* sysdeps/unix/sysv/linux/bits/ipc.h: Remove ipc_kludge definition
here.
* sysdeps/unix/sysv/linux/msgrcv.c (msgrcv): Add ipc_kludge
definition here.
1998-06-18 21:45 Ulrich Drepper <drepper@cygnus.com>
* signal/signal.h: Add prototype for __sigaltstack.

26
bits/sem.h
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@ -1,4 +1,5 @@
/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
/* Copyright (C) 1995, 1996, 1997, 1998
Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -44,11 +45,18 @@ struct semid_ds
unsigned short int sem_nsems; /* number of semaphores in set */
};
/* Union used for argument for `semctl'. */
union semun
{
int val; /* value for SETVAL */
struct semid_ds *buf; /* buffer for IPC_STAT & IPC_SET */
unsigned short int *array; /* array for GETALL & SETALL */
struct seminfo *__buf; /* buffer for IPC_INFO */
};
/* The user should define a union like the following to use it for arguments
for `semctl'.
union semun
{
int val; <= value for SETVAL
struct semid_ds *buf; <= buffer for IPC_STAT & IPC_SET
unsigned short int *array; <= array for GETALL & SETALL
struct seminfo *__buf; <= buffer for IPC_INFO
};
Previous versions of this file used to define this union but this is
incorrect. One can test the macro _SEM_SEMUN_UNDEFINED to see whether
one must define the union or not. */
#define _SEM_SEMUN_UNDEFINED 1

26
sysdeps/generic/bits/sem.h
View File

@ -1,4 +1,5 @@
/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
/* Copyright (C) 1995, 1996, 1997, 1998
Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -44,11 +45,18 @@ struct semid_ds
unsigned short int sem_nsems; /* number of semaphores in set */
};
/* Union used for argument for `semctl'. */
union semun
{
int val; /* value for SETVAL */
struct semid_ds *buf; /* buffer for IPC_STAT & IPC_SET */
unsigned short int *array; /* array for GETALL & SETALL */
struct seminfo *__buf; /* buffer for IPC_INFO */
};
/* The user should define a union like the following to use it for arguments
for `semctl'.
union semun
{
int val; <= value for SETVAL
struct semid_ds *buf; <= buffer for IPC_STAT & IPC_SET
unsigned short int *array; <= array for GETALL & SETALL
struct seminfo *__buf; <= buffer for IPC_INFO
};
Previous versions of this file used to define this union but this is
incorrect. One can test the macro _SEM_SEMUN_UNDEFINED to see whether
one must define the union or not. */
#define _SEM_SEMUN_UNDEFINED 1

11
sysdeps/unix/sysv/linux/bits/ipc.h
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@ -1,4 +1,4 @@
/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
/* Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -50,15 +50,6 @@ struct ipc_perm
};
/* Kludge to work around Linux' restriction of only up to five
arguments to a system call. */
struct ipc_kludge
{
void *msgp;
long int msgtyp;
};
__BEGIN_DECLS
/* The actual system call: all functions are multiplexed by this. */

2
sysdeps/unix/sysv/linux/bits/sem.h
View File

@ -62,7 +62,7 @@ struct semid_ds
Previous versions of this file used to define this union but this is
incorrect. One can test the macro _SEM_SEMUN_UNDEFINED to see whether
one must define the unio or not. */
one must define the union or not. */
#define _SEM_SEMUN_UNDEFINED 1
#ifdef __USE_MISC

12
sysdeps/unix/sysv/linux/msgrcv.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1995, 1997 Free Software Foundation, Inc.
/* Copyright (C) 1995, 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
@ -19,6 +19,16 @@
#include <sys/msg.h>
/* Kludge to work around Linux' restriction of only up to five
arguments to a system call. */
struct ipc_kludge
{
void *msgp;
long int msgtyp;
};
int
msgrcv (msqid, msgp, msgsz, msgtyp, msgflg)
int msqid;